Another musician has let SeaWorld know they are upset about the Blackfish documentary. The marine park has been contacted by rocker Joan Jett requesting that they quit using her song "I Love Rock 'n' Roll" in their "Shamu Rocks" killer whale show.

Jett's letter says, "I'm among the millions who saw Blackfish and am sickened that my music was blasted without my permission at sound-sensitive marine animals." Nick Gollattscheck, SeaWorld spokesman, confirms that the park received the letter, but says they did have permission to use the song and that the nighttime Shamu Rocks show is not currently being performed. This show is usually presented in the summer. He says a new nighttime show is in development.